Environmental activist Erin Brockovich questioned the trustworthiness of a local water district Thursday after learning it failed to test for potentially dangerous volatile organic compounds.

Before a community meeting attended by hundreds of local residents — organized after her Facebook post criticizing the safety of local water — Brockovich said she would drop a "bomb." Then she revealed the testing violations, which were posted just a day earlier on the Texas Commission on Environmental Quality website.

"So, tell me now what's in the water, what's not in the water. Because I don't know, because I guess you forgot to test for it," she said of the water district on Thursday night.

But the violation, it turns out, was a miscommunication. The TCEQ issued a news release Friday afternoon explaining the issue.

There was no testing during 2017 for the Wylie Water Treatment Plant's EP001 entry point because it was shut down for renovations. State regulators were unaware that the North Texas Municipal Water District, which serves some 1.7 million customers, had shut down its original treatment plant last year.

When contacted Thursday night about the violations, a water district spokeswoman said the district had only just discovered the notices and weren't sure what they meant. District officials later figured out the problem and submitted paperwork to the TCEQ on Friday morning.

By early Friday afternoon, violations were removed from the state agency's database.

Bob Bowcock, a water consultant who often works with Brockovich, said at Thursday's meeting in Frisco that he didn't think the violations meant the water was filled with volatile organic compounds. He said it mainly undercut the district's safety claims.

"Why I found this interesting and disturbing is simply because what have we been hearing in the press for last month?" Bowcock asked. "We [the water district] sample exhaustively. We do more samples than God. We do samples for samples. And then TCEQ issues a violation for not doing your samples. OK, that's a problem."

Although this accusation fell flat, it was just one of many lobbed against the water district.

Brockovich and Bowcock criticized the district for using too much chlorine and its management of the disinfectant mix in the drinking water. In the 13,000-member Safer Water, North Texas Facebook group that emerged in recent weeks, members have complained of rashes and other health problems they think could be linked to the water.

Officials with the North Texas Municipal Water District have insisted all along the water is safe and emphasized that it meets state and federal standards. Brockovich said those standards aren't sufficient and that water utilities shouldn't use that as an excuse.